1. The Top-Line Comparison: Jev 1.13.0 vs. SemIf

Jev 1.13.0 slightly edges out SemIf in overall score, but the gap is narrow, indicating that SemIf is a highly competitive open-source alternative.

MetricJev 1.13.0SemIfWinner
Overall JevBench Score74.473.1Jev 1.13.0
Intelligence85.779.0Jev 1.13.0
Calibration82.772.6Jev 1.13.0
Speed83.383.7SemIf (Slightly)
Cost Score52.059.5SemIf (Cheaper)

Key Takeaway: Jev 1.13.0 is the "smarter" and better-calibrated model, but SemIf is faster and more cost-efficient.

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2. Subject-Specific Accuracy

The two models show distinct "personalities" in terms of where they excel:

  • Jev 1.13.0 Dominates in "High-Stakes" Logic:
  • Rules, Policy & Law: 83.6% vs. 64.2% (Significant lead)
  • Finance & Commerce: 73.4% vs. 60.9%
  • Math & Numbers: 87.6% vs. 79.1%
  • Safety & Security: 100% vs. 75.0%
  • SemIf Dominates in Technical Implementation:
  • Coding & Software: 96.4% vs. 83.9% (Significant lead)
  • Parity: Both models achieved 100% accuracy in Everyday Language.

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3. The Open-Source Landscape

For users seeking open-weight alternatives to proprietary systems, the benchmark identifies several top performers. The proximity of their scores to Jev 1.13.0 suggests that open models are nearly as capable for decision tasks.

Top-Ranked Open Entrants:

  1. SemIf: 73.1
  2. djev: 73.0
  3. Winnow-12B Q8: 71.2
  4. reflex 4B: 70.3

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4. Reliability & Generalization (Hard-Tier Analysis)

The "Held-out hard-tier" data is crucial because it tests whether a model has simply "memorized" the public benchmark or if it can actually reason through new, difficult problems.

  • Jev 1.13.0 is remarkably stable: it actually performed better on held-out data (75.2%) than on public data (73.0%).
  • SemIf showed a slight degradation: Public (61.3%) → Held-out (57.8%), suggesting it may be slightly more prone to overfitting or less consistent on unseen hard tasks.
  • Absolute Powerhouses: While not the focus of the Jev vs. SemIf comparison, GPT-5.6 Luna and DeepSeek V4.1 Flash are the clear leaders in raw intelligence for hard tasks, both scoring above 92% on held-out data.

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5. Cost and Efficiency Insights

The benchmark uses a unique "per 1,000 decisions" metric rather than "per token," which is more practical for business operations.

  • Price Point: SemIf is significantly cheaper (~$0.022 per 1k decisions) compared to Jev 1.13.0 (~$0.0399 per 1k decisions).
  • Efficiency: Models like Laya and Certo v1 are incredibly cheap (under $0.01 per 1k decisions) but suffer significantly in intelligence and overall score.

Final Verdict for Decision Makers

  • Choose Jev 1.13.0 if: Your primary needs are legal compliance, financial calculations, or high-security triage where precision and calibration are more important than cost.
  • Choose SemIf if: Your primary needs are coding-related decisions, software routing, or if you require a high-performing open-source model that you can self-host for GDPR/privacy reasons.